Setts



(No Model.)

, SFJ'. MCDOWELL & E. O.-BIGKNELL.

HEATER.

,162. Patent-ed 001;. 80, 1888.

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N. PETERS Phuia-Lnnogmphnn washin wn, a. c.

SAMUEL J. MCDOWELL AND EMERY O. BIGKNELL, OF BOSTON, MASSACHU- SETTS; SAID MODOVVELL ASSIGNOR OF HIS RIGHT TO l/VILLARD O. ARMES,

OF SAME PLACE.

HEATER.

SPECIFICATION forming part of Letters Patent No- 392,162, c'iated October 30, 1888.

' Application filed December 12, 1887. Serial No. 257,688. (No model.)

To aZZ whom it may concern:

Be it known that we, SAMUEL J. MCDOW- ELL and EMERY O. BIOKNELL, of Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Heaters, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is an isometrical perspective view of our improved heater; Fig. 2, a side eleva- [5 tion of the handle detached; Fig. 3, a vertical transverse section of the heater; Fig. 4, a perspeotive view of the box removed. and Figs. 5 and'6 views showing a modification of our improvement.

Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

Our invention relatesmore especially to that class of heaters which are portable and adapted to burn naphtha, kerosene, alcohol, or any similar combustible fluid; and it consists in certain novel features, as hereinafter fully set forth and claimed, the object being to produce a simpler, cheaper, and more effective device of this character than is now in ordinary use.

The nature and operation of the'improvcment will be readily understood by all conversant with such matters from the following explanation. I In the drawings, A represents the body of the heater; B, the cover; O,. the handle, and D the box.

The body is preferably composed of iron, but may be made of any other suitable non- .1.o combustible material. It may also be of any suitable shape or size in accordance with the position in which it is to be used.

The cover is provided with a downwardlyproj ecting flange, :0, adapted to fit closely over the upper edges of the body, and issecured thereto by means of hinges a, said hinges being provided with projections o,which engage the body and serve as stops to prevent the cover from opening too far, as shown in Figs. 5c 3 and 5. The cover is also provided with a series of transversely-arranged elongated slots a thumb-screw, t, which is fitted to work in a or openings, m, and with a plate,f, having a corresponding series of slots, said plate being suspended from the under side of the cover by longitudinally-arranged slot, 6, and constitutes a register or damper for regulating the combustion or size of the flame. The front portion of the flange w is provided with a centrally-arranged hole, (I, (see Fig. 3,) and the front of the bodyA with a similar hole adapted. to register therewith. A key, h, consisting of a tapering piece of metal having a head, 1), is inserted in said holes to lock the heater when the cover is closed, the inner end of said key being curved or bent laterally, as shown in Fig. 3, to prevent its accidental escape there from.

The handle 0 consists of a piece of stout wire which is bent or curved upward at each end, as shown at g in Fig. 2, said ends being inserted in centrally-disposed eyes 7a at the ends of the cover 13, for the purpose of lifting, carrying, and otherwise manipulating the heater.

The box D is preferably composed of stout 7 5 V wirecloth or similar reticulated fabric, as shown in Fig. 4-, said box being adapted to be inserted centrally in the body ofthe heater, for the purpose hereinafter specified.

In the use of our improvement the body A 8c is filled with a non-combustible absorbent, K, preferably asbestus, which may be disposed therein loosely or in ropes or sheets, the box D being placed in the center of said filling and so that the asbestus will completely surround it 011 all sides, as best seen in Fig. 8. The cover B is then closed and locked by the key it, its damper being left open and the handle 0 inserted in the eyes 70. The body A is then filled with kerosene, naphtha, alcohol, or some other combustible fluid by pouring such fluid through the top layer of asbestus within said body. The packing K becomes thoroughly saturated with the fluid. The device is then placed in the grate, fire-place, stove, fire-pot, furnace, range, or other place where it is to be used and the fluid ignited, thereby causing the flame to rise through the slots in the cover and the heater to operate in a manner that will be readily understood by all conversant with such matters without a more explicit description. The heat from the burning oil at the top of the body causes the oil within said body to become vaporized and to rise through the upper layer of the packing in the form of vapor, as well as by capillary attraction, and

5 the asbestus packing at the sides, bottom, and

ends of the body serves the double purpose of a capillary material and as a nonconduetor for retaining the heatwithin the body.

It will be obvious that the amount of flame or heat may be readily regulated by the damper in the cover, or the flame entirely extinguished, if desired, by closing said damper; also, that when more heat is required than can be obtained with the cover closed it may be opened, thereby allowing the whole upper surface of the asbestos to become ignited.

By the use of the box D a chamber is formed in the interior of the body A for holding the lluid employed in bulk, thereby permitting a much larger quantity of said fluid to be placed in the heater at any one time than would. otherwise be possible. The box also subserves another important purpose, in that it reduces the quantity of filling used in the heater.

Instead of the wirecloth box shown in Fig. 4-, a foraminous sheet-metal box may be employed, if preferred, as shown in Figs. 5 and U. The box may also be made of any desired size, the one shown in Fig. 4 being preferable in that respect to the one shown in Fig. 6.

The form of the apertures in the damper may be varied as desircd,those shown being deemed preferable.

The construction of the damper, as well as its position, may also be varied, provided it performs its functions properly.

Any suitable devices for looking the cover and hinging it to the body may also be employed.

One or more of the walls of the box forming the chamber may be closed or unprovided with openings for the fluid, provided there is one or more sufficient openings through which the fluid may enter and leave said chamber.

Having thus explained our invention, what we claim is-- 1. An apparatus for burning liquid fuel, consisting of a hollow body for containing the liquid fuel to be burned, the walls of said body being composed of incombustible material, an inner box of reticulated noncombustible material within said body, a layer of asbestus within said body and completely surrounding said box on all sides, and a slotted top provided with a regulating-damper, substantially as described.

2. An apparatus for burning liquid fuel, consisting of a hollow body for containing the liquid fuel to be burned, the walls of said body being composed of incombustible material, an inner box of reticulated non-combustible material within said body, a layer of asbcstus within said body and completely surrounding said box on all sides, and a slotted lid hinged to said box and provided with a regulatingdampcr, substantially as described.

SAMUEL J. MGDOVVELL. EMERY O. TBIGKNFJTJL.

Witnesses:

O. M. SHAW, 13. M. SrINxnv. 

